Sash lock



Jam". 15 1924.-

" M S. RosENTHAl'.

SASH LUCK Fild July 20. 1921 IN VE N TOR www TTUHNEY Patented Jan. 15, 1924.

UNITED STATES MAX S. BOSENTHAL, 0F NEW YORK, N. Y.

SASH LOCK.

Application flied July 20, 1921.

To all whom t may concern Be it known that I, MAX S. RosENTHAL, a citizen of the United States, and resident of the borough of Bronx, county of Bronx, city and State of New York, have invented certain new and useful Improvements in Sash Locks.

The principal object of this invention is to produce a sash lock that cannot be opened in any way except b the means provided.

Another obj ectof t e invention is to provide a lock and not merely a bolt and by lock I mean a device having a removable key and certain locking members that operate in the general manner of the most eiiicient door or cabinet locks.

Another object of the invention is to provide a lock the parts of which cannot be removed or readily broken and that cannot be opened from the exterior of the sash even though the operating means is provided.

With these objects in view the following is what I consider a good means of carrying out the invention and the accompanying drawings should be referred to for a complete understanding of the specification which follows In the drawings:

Fig. 1 is a Sectional view on the line 1-1 in Fig. 2 and shows my lock in operative position.

Fig. 2 is a plan view partly in section.

Fig. 3 is an elevation partly in section, the section being taken on the line 3-3 of Fig. 2.

ig, 4 is a sectional view on the line 4 4 in Fig. 2 and Fig. 5 is a sectional view on the line 5 5 in Fig. 2.

Similar reference numerals indicate like parts in all the figures where they appear:

At 10 I show what may be considered the lower sash of a vertically opening window and at 11 the upper sash of the window, each of. these sashes is provided with the usual glass battens and side guides and the junction between the sashes and across the adjacent bars when the sashes are closed is arranged at an angle as indicated at 12 but in placing my lock in position I cut away a portion of the angular part the portion indicated by the reference character 13 and for a pullpose as shall be later described.

y lock is in two main parts or casings,

the narrow oblong casing 14 and the approximately square and larger casing 15.

Serial No. 486,311.

The casing 14 will be secured t0 the upper portion 11 of the sash or rather to the top side of the bottom rail of the upper sash, by means of a plurality of screws 16, 17 and 18 which enter through the bottom of the casin into the sash.

n producing this casing 14 the bottom and three sides may be formed integral, the top is an independent member removable and adapted to be received and secured into the sides of the casing by tongues and grooves 19 formed in art upon the top member and the three si es.

One of the longest sides of this casing is left open and upon the other longer side and at the interior thereof I provide lugs 26 and 21 adapted to receive screws which pass through lugs or projections 22 and 23 secured to or formed integral with the top or cover member 24 and I call particular attention to the recess or groove 25 formed in a downwardly projectin lip on the cover member 24 and it will e noted that I also provide inwardly or downwardly projecting lips 26, 2T and 28 upon the sides and bottom of the smaller casing, each having formed therein grooves or channels that will be later referred to and within this smaller casing I provide an upstanding boss 29, the upper edge of which is angularly disposed and for the reception of the free end of a locking bar to be later described.

The larger casing 15 contains the movable or operating mechanism of my lock, this casing is provided with a bottom portion and three upwardly extending members or sides. Each side is provided with a groove 30 adapted to receive the tongues 3l formed upon three sides of the cover member 32 and it will be noted that I also provide hooks or grooves and projections 33, 34, 35 and 36 surrounding the open edges of this member and adapted to be received into and to enthe similar grooves, hooks or projections 25, 26, 27 and 28 provided and surrounding the open edge of the smaller member previously described and when the parts are brought together, the hooks 35 and 36 will slidably engage the hooks 26 and 27 and the hooks 33 and 34 will into the recesses in the projections 25 and 28 complet,- ing the formation of a practically integral lock casing.

It will be noted that the lock operatlng mechanism is almost wholly supported upon the slidable cover member 32. This lock and The locking bar 37 is moved outward orV away from the smaller member 14 by a spring 46 operating between the projection 3S upon the locking bar anda lug` 47 which may also be formed integral With or secured the cover member 32 and I provide a guide pin 48 secured betwen the luglsflil and 47 and upon which the projection 38 is free to move.

The lock operating member or device is the barrel which may be the operating mechanism of an ordinary cylinder lock. The. pins of this lock being arranged in the easing 49 and the key end of the barrel eX- tending through the outer side ofV the casing l5 adjacent to the locking bar 37.

The rotation of a key in the cylinder 45 will rotate a projection'O which in turn is conneetedto and rotates a cam or bar 5l.

I have previously mentioned the channel members 42 and 43. These members formed upon the cover member 32 serve as guides for the locking pin 52 and in cross-section this pin assumes the shape of a cross. The vertical arms of which are supported between the guides or channels@ and 43`and the horizontal arms of which are supported in grooves or slots oppositely arranged and in the members 42 and 43. I place a spring 53 between the guides or channels 42 or 43 and this spring may be Supported by the right angular projection formed at the junen tions of the grooves which support the locking pin The outer or free end of the pin 52 may be reduced in area to be received into the recess 39 in the main locking bar and the inner end of this pinmaiy bereduced to be received into the spring 53.

The locking bar or cam 51 rotatable by the projection or pin in turn rotatedby the key is received in a recess inthe locking pin and it will be noted that this recess 54 is so shaped that the bar member 5l can rotate but in one direction but in rotating in a clockwise direction will more the pin 52 away from the lockin bar 37 by engaging the abutment 55 which projects into the recess 54.

I call particular attention to the means for securing both parts of my lockY in operative position. In each instance the securing screws are interior of the casing and are placed before the lock is assembled and are arranged as described in relation to the smaller casing member 14. In placing thc larger cover 3Q, the principal locking parts are arranged in position and this cover may be secured by means of screws entering suitable lugs :is shown at 5G and 5T. Y

The arrangement or construction of the easing may be employed with locks other than that here shown and described. The p in 50 may terminate in the operating cani 5l and may be a part thereof. Any type of cylinderlocking*means may be employed. ll1 or locking the device it is only necessary to push the bar 37 inward until the. end of the pin 52 engages in the recess 39, but other means for operating the bar 3T may be eniplo red and'other niodiications may be made witliin the scope of the appended claims Without departing from the principal or sacrificing the advantages of the invention.

Having carefully and fully described my invention what I claim and desire to secure by Letters Patent is as follows l. A lock having a casing formed of tivo box sectional members, each having an open side, cti-acting tongues and grooves formed on all edges ol the open sides of both said parts, a locking bar normally projecting from one said part and adapted to be projected into the other said part, resilient means for retracting Suid locking bar and resiliently operated means ior retaining said locking bar.

A lock having a casing .formed ot' two boxv sectional members, each having an open side. cri-acting tongues und grooves formed on all edges of the open sides of both said parts, a locking bar normally projecting from one said part and adapted to be'pro jected into the other said part, resilient means for retracting said locking bar and resiliently operated ineens tor retaining said locking lmr and a key operated means for moving said retaining means against itsiresilient means.

3. A lock havingl a casing formed ot two box sectional men'ibers, each having an open side, co-acting tongues and grooves 'formed on all edges of the open sides of both said parts, a llocking bar normally projecting from one said part and adapted te be projected into the other said part, resilient means `for retracting said locking bar and resiliently operated means for retaining said locking bar and a hey operated means for moving said retaining means againstY its re silient means, said key operating means being arranfred parallel to and serving as a guide for said locking bar.

M. s. RosErrrHAL.

Uli 

